Thanks for all the info , have been getting some nice pics with the Ed80 and NEX5 combo on the neq6 and would have to off axis guide with my observatory setup as the roof opening is asymmetrical and fairly small. Adequate for observing and general prime focus photography but too small to enable two scopes to view simultaneously all the time .The fast newt looked a possible answer but only at a comparative price to a radial guider and guide camera. May well consider this option again though still resisting the complication it imposes.
Philip
